I bought the beadlock system, used for the first time and worked great.

I bought this to make 4 chairs and absolutely love it. I promptly cut off the tab so I could use a depth collar. I used 30 joints per chair. So 120 joints later-240 mortises,1,920 drilled holes, everything is dandy with no issues or mistakes. I plan on getting the pro model sometime as I can see using both jigs for unlimited joinery. The joints are rock solid and easy to align after practicing on scrap. I'm just mad I didn't think of this simple jig first.